
public class Code8082 {


	public static void main(String[] args) {
		for(int i=1;i<=10;i++){
			for(int j=1;j<=11-i;j++){
				System.out.print(" ");
			}
			for(int j=1;j<=2*i-1;j++){
				if(j==1||j==2*i-1){
					System.out.print("*");
				}else{
					System.out.print(" ");
				}
				
			}
			System.out.println();
		}
		
		for(int i=1;i<=10;i++){
			for(int j=1;j<=i+1;j++){
				System.out.print(" ");
			}
			for(int j=1;j<=19-2*i;j++){
				if(j==1||j==19-2*i){
					System.out.print("*");
				}else{
					System.out.print(" ");
				}
			}
			System.out.println();
		}
	}
}
